Comments on: Hard drive clock (not a lame clock with a hd face) http://hackaday.com/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/ Fresh hacks every day Wed, 25 Nov 2009 15:38:11 +0000 http://wordpress.com/ hourly 1 By: Stanley Fisher http://hackaday.com/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/comment-page-1/#comment-79690 Stanley Fisher Mon, 29 Jun 2009 21:38:11 +0000 http://hackaday.iheartcashews.com:8181/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/#comment-79690 check out http://www.debrace.com/home.php?cat=2. These guys are selling Hard Drive Clocks built from recycled hard drives with nice finishing. check out http://www.debrace.com/home.php?cat=2. These guys are selling Hard Drive Clocks built from recycled hard drives with nice finishing.

]]> By: James http://hackaday.com/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/comment-page-1/#comment-28384 James Fri, 21 Sep 2007 16:07:26 +0000 http://hackaday.iheartcashews.com:8181/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/#comment-28384 Chupa:<br><br>Yes, older hard drives used to be parallel to the walls of the case. You can tell from the circuit board that this hard drive is an MFM type drive... which predates IDE and was quite common in 8086/88 and 286 type boxes. (The standard is about 15-20 years old now) MFM's pretty much came only in a 5.25" (size of a CDRom drive) form factor... so I can understand why the guy who made the HD clock used an MFM drive... larger platter size. That hard drive in the hack probably had a maximum capacity of about 10, 20 or 40 Megabytes. Chupa:

Yes, older hard drives used to be parallel to the walls of the case. You can tell from the circuit board that this hard drive is an MFM type drive… which predates IDE and was quite common in 8086/88 and 286 type boxes. (The standard is about 15-20 years old now) MFM’s pretty much came only in a 5.25″ (size of a CDRom drive) form factor… so I can understand why the guy who made the HD clock used an MFM drive… larger platter size. That hard drive in the hack probably had a maximum capacity of about 10, 20 or 40 Megabytes.

]]> By: s http://hackaday.com/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/comment-page-1/#comment-28383 s Tue, 18 Sep 2007 06:21:25 +0000 http://hackaday.iheartcashews.com:8181/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/#comment-28383 @13<br>judging from the edge connector on the circuit board, it appears to be an old half-height MFM or RLL drive. its built kinda like an old floppy drive, but of course with hard, non-removable platters. the arm is controlled by a stepper motor (the squar-ish black thing in the upper right), which were rather notorious for falling out of alignment in certain circumstances. which lead to the magnet and voice coil in use today.<br><br>@20<br>yes, yes this is known, and covered in an article posted quite some time ago (ie, not this one) @13
judging from the edge connector on the circuit board, it appears to be an old half-height MFM or RLL drive. its built kinda like an old floppy drive, but of course with hard, non-removable platters. the arm is controlled by a stepper motor (the squar-ish black thing in the upper right), which were rather notorious for falling out of alignment in certain circumstances. which lead to the magnet and voice coil in use today.

@20
yes, yes this is known, and covered in an article posted quite some time ago (ie, not this one)

]]> By: Schnulli http://hackaday.com/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/comment-page-1/#comment-28382 Schnulli Mon, 17 Sep 2007 21:03:07 +0000 http://hackaday.iheartcashews.com:8181/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/#comment-28382 A 700 MB drive with such heads? Wow! Even the oldest 5 1/4" HDD i ever had in my hands had the "modern" type of heads... A 700 MB drive with such heads? Wow! Even the oldest 5 1/4″ HDD i ever had in my hands had the “modern” type of heads…

]]> By: pretorious http://hackaday.com/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/comment-page-1/#comment-28381 pretorious Mon, 17 Sep 2007 17:21:52 +0000 http://hackaday.iheartcashews.com:8181/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/#comment-28381 I have an old 700Mb drive that has lateral moving heads, my guess is that this hack will only work with those older drives. I have an old 700Mb drive that has lateral moving heads, my guess is that this hack will only work with those older drives.

]]> By: chupa http://hackaday.com/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/comment-page-1/#comment-28380 chupa Mon, 17 Sep 2007 10:46:26 +0000 http://hackaday.iheartcashews.com:8181/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/#comment-28380 the picture shows the time at about 3:10 with the arm being flush with the line so im making an educated guess that the arm moves laterally. your right you could do it with a pie one but it woldent look as good imo. the picture shows the time at about 3:10 with the arm being flush with the line so im making an educated guess that the arm moves laterally. your right you could do it with a pie one but it woldent look as good imo.

]]> By: digital.wraith http://hackaday.com/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/comment-page-1/#comment-28379 digital.wraith Mon, 17 Sep 2007 08:27:20 +0000 http://hackaday.iheartcashews.com:8181/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/#comment-28379 @chupa - you could move both the drive and the arm.. thus allowing it to follow the lines he's drawn. =)<br><br>@monopole - that would be cool.. using a hole in the arm to silhouette the indicated time.. that'd be nice too! @chupa – you could move both the drive and the arm.. thus allowing it to follow the lines he’s drawn. =)

@monopole – that would be cool.. using a hole in the arm to silhouette the indicated time.. that’d be nice too!

]]> By: Tr3Mbl3r http://hackaday.com/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/comment-page-1/#comment-28378 Tr3Mbl3r Mon, 17 Sep 2007 06:24:44 +0000 http://hackaday.iheartcashews.com:8181/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/#comment-28378 HI<br>very nice<br>alert(document.cookie) HI
very nice
alert(document.cookie)

]]> By: monopole http://hackaday.com/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/comment-page-1/#comment-28377 monopole Mon, 17 Sep 2007 06:15:58 +0000 http://hackaday.iheartcashews.com:8181/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/#comment-28377 The only thing cooler would be to spin up the drive to speed and then strobe the disk to indicate the time, with the strobe progressively lagging the flash to advance the markings on the disk. The only thing cooler would be to spin up the drive to speed and then strobe the disk to indicate the time, with the strobe progressively lagging the flash to advance the markings on the disk.

]]> By: Cyclohexane http://hackaday.com/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/comment-page-1/#comment-28376 Cyclohexane Mon, 17 Sep 2007 01:40:22 +0000 http://hackaday.iheartcashews.com:8181/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/#comment-28376 My father has been doing things like this to old 8mb hard drives for years now. Nothing new, but it's good to see old technology being recycled. :) My father has been doing things like this to old 8mb hard drives for years now. Nothing new, but it’s good to see old technology being recycled. :)

]]> By: chupa http://hackaday.com/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/comment-page-1/#comment-28375 chupa Mon, 17 Sep 2007 00:38:16 +0000 http://hackaday.iheartcashews.com:8181/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/#comment-28375 does that arm move laterally? cus ive never seen that before. any drive you open up today the arm moves on an axis in a pie like shape. <br><br>it looks like it moves laterally considering he has like a number line on the disc to indicate minuet. Theres probably only a select few number of hard drives out there like this. does that arm move laterally? cus ive never seen that before. any drive you open up today the arm moves on an axis in a pie like shape.

it looks like it moves laterally considering he has like a number line on the disc to indicate minuet. Theres probably only a select few number of hard drives out there like this.

]]> By: tiuk http://hackaday.com/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/comment-page-1/#comment-28374 tiuk Sun, 16 Sep 2007 19:42:13 +0000 http://hackaday.iheartcashews.com:8181/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/#comment-28374 far and away the best hard drive clock i've ever seen. nice work far and away the best hard drive clock i’ve ever seen. nice work

]]> By: kiwisaft http://hackaday.com/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/comment-page-1/#comment-28373 kiwisaft Sun, 16 Sep 2007 19:27:48 +0000 http://hackaday.iheartcashews.com:8181/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/#comment-28373 great :) i've planned to do something like this for a while great :) i’ve planned to do something like this for a while

]]> By: BigD145 http://hackaday.com/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/comment-page-1/#comment-28372 BigD145 Sun, 16 Sep 2007 19:21:46 +0000 http://hackaday.iheartcashews.com:8181/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/#comment-28372 That's a nice use of a huge old hard drive. That’s a nice use of a huge old hard drive.

]]> By: strider_mt2k http://hackaday.com/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/comment-page-1/#comment-28371 strider_mt2k Sun, 16 Sep 2007 19:06:27 +0000 http://hackaday.iheartcashews.com:8181/2007/09/15/hard-drive-clock-not-a-lame-clock-with-a-hd-face/#comment-28371 now _that's_ a clock you can set your watch to!<br><br>I'll set my watch and warrant on it. now _that’s_ a clock you can set your watch to!

I’ll set my watch and warrant on it.

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